PyOS_snprintf() for buffer overrun avoidance.

Others:  Remove redundant includes of assert.h.

with Python coding stds (max line length, C-style comments).

last patch to this file: use pathLen, not bufSize, as the initializer.

From: Dan Pierson <dan@remote.control.com>
To: "Mark Hammond (E-mail)" <MHammond@skippinet.com.au>,
    "Guido van Rossum (E-mail)" <guido@cnri.reston.va.us>
Date: Mon, 8 Jun 1998 17:25:07 -0400

RegistryQueryValue requires that its fourth argument be initialized to
the length of the buffer being passed in, this wasn't being done.  I
also split the call and status test into two lines with a local variable
so that I could look at the status in the debugger.

Also, here is a new version of import_nt.c, which allows you to register a
Debug module in the registry.  While I was there I removed some of the
ugliness - what was I thinking :-)

again (Mark Hammond is the cause of all this).